For the given probability density function, over the stated interval, find the requested value.f(x) = 
x, over the interval 1 ? x ? 3. Find E(x).
A. 
B. 
C. 
D. 
Answer: D
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Provide an appropriate response.Find all complex cube roots of z = 8(cos 87° + i sin 87°). Write each root in standard polar form with the argument in degrees.
A. -2(cos 29° + i sin 29°), 2(cos 149° + i sin 149°), -2(cos 269° + i sin 269°) B. 2(cos 29° + i sin 29°), 2(cos149° + i sin 149°), 2(cos 269° + i sin 269°) C. 2(cos 29° + i sin 29°), 2(cos 69° + i sin 69°), 2(cos 109° + i sin 109°) D. -2(cos 29° + i sin 29°), 2(cos 69° + i sin 69°), -2(cos 109° + i sin 109°)
Evaluate the logarithm, if possible. Round the answer to four decimal places.log 2.81
A. 1.0332 B. 0.4487 C. 0.4330 D. 0.4639
Simplify the expression.
?
What will be an ideal response?
Provide an appropriate response.Solve for x: 22x - 2 ? 2x - 3 = 0
What will be an ideal response?